100021200011111 has 8 divisors (see below), whose sum is σ = 100115859230544. Its totient is φ = 99926575467840.

The previous prime is 100021200011063. The next prime is 100021200011113. The reversal of 100021200011111 is 111110002120001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100021200011111 is a prime.

It is a super-2 number, since 2×100021200011111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100021200011092 and 100021200011101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021200011113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2895620 + ... + 14437001.

It is an arithmetic number, because the mean of its divisors is an integer number (12514482403818).

Almost surely, 2^{100021200011111} is an apocalyptic number.

100021200011111 is a deficient number, since it is larger than the sum of its proper divisors (94659219433).

100021200011111 is a wasteful number, since it uses less digits than its factorization.

100021200011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17338081.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 100021200011111 its reverse (111110002120001), we get a palindrome (211131202131112).

It can be divided in two parts, 10002120001 and 1111, that multiplied together give a palindrome (11112355321111).

The spelling of 100021200011111 in words is "one hundred trillion, twenty-one billion, two hundred million, eleven thousand, one hundred eleven".